He’s the guy who disguised his own incoherence by profoundly declaring: “There are knowns. These are things we know that we know. There are known unknowns. That is to say, there are things that we know we don’t know. But there are also unknown unknowns, There are things we don’t know we don’t know.”

Not even Yogi Berra could be that linguistically creative.

Well, Rumsfeld is back. But only as the inspiration for Donald Trump, who has been dodging nooses daily to explain why goofy things are already taking shape The Russian hackers, for starters.

Obviously displeased (as only he can be) that fingers are being pointed at Donald’s buddy, Vladimir Putin, as the perp for the hacking of sensitive American emails during the campaign, Trump blamed computers instead.

“I think that computers have complicated lives very greatly,” he opined. “The whole age of computers has made it where nobody knows exactly what is going on.”

Trump often tells us that “nobody knows” after making poisonous attacks on his rivals to get it before the media.

So who knows which of Rumsfeld’s criteria will it be for the Russian hackers. “Things we don’t know we don’t know?” “Unknown unknowns?”

I, for one, will place my bets on the security agencies who say they do know what’s going on, and it has nothing to do with erratic computers.